Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3846a540e2a20b2…

MALICIOUS

PDF

103.1 KB Created: 2020-08-10 07:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdef521d21e7c739bf6ee3b9a10349dc SHA-1: 84584ea0eac10cbdc7286824122b7431a9bee778 SHA-256: c3846a540e2a20b2a392f0425468828291d5d491d978fd8cddbfaa0533c858c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=brief+history+of+track+and+field+pdf'. Additionally, another critical heuristic indicates a PDF link farm, with the dominant host being cdn.shopify.com, suggesting an attempt to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body contains the same URL as the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=brief+history+of+track+and+field+pdf In PDF document text
    • http://files.gregbgordon.com/uploads/1/3/2/6/132680808/5408861.pdfIn PDF document text
    • http://files.easw.net/uploads/1/3/2/7/132740214/labunikoxis.pdfIn PDF document text
    • http://files.hunterspointetulsa.com/uploads/1/3/2/6/132681304/pivasotafegazedipik.pdfIn PDF document text
    • http://romaj.jandbmkt.com/uploads/1/3/1/8/131856772/97f6bb7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1518/0188/files/93264501309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3687/4651/files/narukakeves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/besaxijerapixenaziwuwub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9799/5944/files/portugues_para_iniciantes_estrangeiros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2281/0263/files/95353093199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/icm_business_management_and_administration_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8603/6635/files/87487148097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/ikea_countertop_desk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7085/7122/files/9038719087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51439980706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9488/files/fijofefabo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15849 5456 bytes
SHA-256: 4e9e5770b53d886a2e31ba9a433c1032f674e30f3b0062cc872a6fedf1a1519c
font_01_sfnt_off00016adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16ADB 10512 bytes
SHA-256: 5c375c197459f27af1d0fef8f9d2a09265128fc5e9362edf9e3a022bfd74daa5

Open this report in the interactive analyzer, or submit your own file for analysis.